Hi, I'm trying to set up XWiki in a network with a PostgreSQL database that uses kerberos for authentication. I know it is possible to control the authentication mechanism used by the JDBC driver using login.conf. For example, the following simple program accesses a postgresql database: import java.sql.*; import java.util.*; import org.postgresql.Driver; class Test { public static void main(String... args) throws Exception { Properties props = new Properties(); props.setProperty("loglevel", "2"); props.setProperty("user", "xwiki"); props.setProperty("ssl", "true"); Connection conn = DriverManager.getConnection("jdbc:postgresql://db.example.com:5432/xwiki", props); } } It can be made to use a kerberos keytab by passing -Djava.security.auth.login.config=login.conf, with the following login.conf file: pgjdbc { com.sun.security.auth.module.Krb5LoginModule required useKeyTab=true keyTab=xwiki.keytab principal=xwiki storeKey=true doNotPrompt=true; }; (pgjdbc is apparently the default application name for the postgresql driver) I want to do something similar with the xwiki installation (running inside tomcat 7). 1) Is there some reason this cannot be done? 2) What is the application name I need to give in login.conf for this to work properly? Thanks, Eric